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BEFORE INSTALLING

This information is included as a quick reference installation guide. Refer to the 
appropriate control panel installation manual for detailed system information. 
If the modules will be installed in an existing operational system, inform the 
operator and local authority that the system will be temporarily out of service.

NOTICE: This manual should be left with the owner/user of this equipment.

GENERAL DESCRIPTION

Relay Module, Model EM-1RI, is to be designed for use in activation of the 
types of products that are generally connected to an intelligent fire alarm sys-
tem. It provides two sets of form C contacts that switch together (one DPDT 
relay). There is also an input that is capable of monitoring a dry set of contacts 
for open or closed conditions. The module also has on-board short circuit iso-
lators to prevent shorts on the signaling line circuit from disabling more than 
one device on the intelligent loop.

COMPATIBILITY REQUIREMENTS

To ensure proper operation, this module shall be connected to a listed compat-
ible control panel.

MOUNTING

The module mounts directly to 4-inch square electrical boxes. The box must 
have a minimum depth of 2

1

8

 inches. Modules must be mounted with the ar-

row facing upward for proper operation of the IR programming tool. Surface 
mounted electrical boxes (SMB500) are available from System Sensor.

IR RECEIVER

LED INDICATOR

C0166-00

D500-61-00 

I56-2023-005

EM-1RI Relay Module

SPECIFICATIONS

Normal Operating Voltage: 

15 to 30 VDC

Standby Current: 

580 µA max. average (continuous broadcasts)

Alarm Current: 

2.0 mA (red LED on)

Short Circuit Current, Dry Control Input: 

30 µA max. average (5VDC)

Maximum Resistance, Dry Contact Input: 

100 

Ω

Temperature Range: 

32°F to 120°F (0°C to 49°C)

Humidity: 

10% to 93% RH Non-condensing

Dimensions: 

4.17˝ H × 4.26˝ W × 1.22˝ D; (106 mm H × 108 mm W × 31 mm D)

Accessories: 

Wall cover plate (included); SMB500 Surface Mount Electrical Box; CB500 Control Module Barrier

CURRENT RATING

MAXIMUM VOLTAGE

LOAD DESCRIPTION

APPLICATION

3 A

30 VDC

Resistive

Non-Coded

2 A

30 VDC

Resistive

Coded

.9 A

110 VDC

Resistive

Non-Coded

.9 A

125 VDC

Resistive

Non-Coded

.5 A

30 VDC

Inductive (L/R=5ms)

Coded

1 A

30 VDC

Inductive (L/R=2ms)

Coded

.3 A

125 VAC

Inductive (PF=.35)

Non-Coded

1.5 A

25 VAC

Inductive (PF = .35)

Non-Coded

.7 A

70.7 VAC

Inductive (PF=.35)

Non-Coded

2 A

25 VAC

Inductive (PF=.35)

Non-Coded

NOTE: This module is not approved for use in the European Union, at or above 50VAC or 70VDC.

WIRING

NOTE:  All  wiring  must  conform  to  applicable  local  codes,  ordinances, 
and regulations. 

1.   Install module wiring in accordance with the job drawings and appropri-

ate wiring diagrams.

 

 NOTE: Separate cable entry openings must be used to maintain required 
spacing between power limited and non-power limited wiring. Optional 
EA-CB may be required to separate power limited and non power limited 
wiring in the electrical box.

2.   Set the address on the module per job drawings using the IR configura-

tion tool (model no. EA-CT).

3.  Secure module to electrical box (supplied by installer).

AUTO ADDRESSING

Eclipse  Series  devices  are  capable  of  supporting  auto  addressing,  if  the  fire 
alarm control panel is designed to do so. In auto addressing, the control panel, 
through the use of each device’s on-board isolators, can automatically assign 
device addresses. 

In order to control which devices are addressed first in wiring configurations 
with branches, a branch marker can be set at a particular device. A branch 
marker is an electronic value from 0 to 255 stored in the device memory. The 
branch markers are set with the IR configuration tool, EA-CT. 

TERMINAL DEFINITIONS

T1

(+) SLC in/out

T7

Normally Closed #1

T2

(–) SLC in/out

T8

Common #1

T3

(+) SLC in/out 

T9

Normally Open #1

T4

(–) SLC in/out

T10

Normally Closed #2

T5

(+) Dry Contact Input

T11

Common #2

T6

(–) Dry Contact Input

T12

Normally Open #2

WARNING

All relay switch contacts are shipped in the standby state (open) state, but may 
have transferred to the activated (closed) state during shipping. To ensure that 
the switch contacts are in their correct state, modules must be made to com-
municate with the panel before connecting circuits controlled by the module.

INSTALLATION AND MAINTENANCE INSTRUCTIONS

I56-2

023-00

5

3825 Ohio Avenue, St. Charles, Illinois 60174

1.800.SENSOR2; Fax: 630.377.6495

www.systemsensor.com

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